Hangzhou Chunjiang Valve Corporation(Zhejiang Tonglu Valve General Factory) is well-established plant spcializing in design, research and manufacturing various kinds of "Chunjiang" brand valves and plumbing supplies since 1972. It is one biggest manufacturer on valve industry in Zhejiang Province. The company owns complete equipment producing valves of top quality with advanced technology and testing methods. The products are widely use for waterworks, drainage system, paper making, chemcial plant, boiler ...